AU729704B2

AU729704B2 - Set of building parts for didactic-educational toys

Info

Publication number: AU729704B2
Application number: AU75723/96A
Authority: AU
Inventors: Manuel Lemos Melendez
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-08
Filing date: 1996-11-08
Publication date: 2001-02-08
Anticipated expiration: 2016-11-08
Also published as: AU7572396A; ES2112188A1; CA2209491A1; JPH10512978A; WO1997017687A1; DE69620180D1; AR004546A1; EP0837435B1; BR9606895A; ATE215253T1; ZA969375B; ES2112188B1; MX9705143A; EP0837435A1

Description

ub/08 '97 10:17 FAX 458 87 36 C.I.E. 1gv31 2 SET OF BUILDING PARTS FOR DIDACTIC-DUCATIOMA

TOYS

OBETOF THE XNvFENTIOy As expressed in the title of this specification, the _S present invention refers to a set of building parts for didactic-educational toys, whereby relevant and advantageous features are provided in the development of this type of toys, mainly increasing the versatility for the development of three-dimen~sional geometric shapes.

RACGRODNOF TIE1ION Patent of Invention n' P-9300595 whose applicant is the same one as for the present invention, revealed a didactic-educational toy for elementary arithmetic operations that was comprised of a series of parts or elements that could be combined together, combining in a coplanar manner with the help of some boards corresponding to the sides, fitting in a peri 'metric furrow or groove existing in the parts materialized by generally rectangular shaped plates.

There are plates representative of digits, from "one" that is materialized by a small quadrangular surface plate equivalent to one-tenth of the surface representative of the number "ten", all of them having some stepped cylindrical protuberances, there being as many as the number that they represent. These plates have bottom recesses to allow stacking upon fitting in adequately.

There is also a series off figurative parts that can be assembled in the perimetric groove of the plates in order to permit the studying of the spatial concep ts of left, right, up, etc.

In a Certificate of Addition to this cited Patent and whose application number is 9400464, some improvements were introduced in Patent of Invention nio. P-9300595 mainly based on the following: Some mounting parts of the different "X"-shaped or 08/08 '97 FRI 18:14 [TX/RX NO 9993] 12/08 '97 17:29 FAX 458 87 36 C.I.E. I1j02 3 double shaped ni~ieric plates fitting in the stepped cylindrical 'Protuberance s, are included.

The plates With ciphers adopt in this case a rectangular mold structure where the suitable numeric plates fit in to identify the number with the shape thereof.

Besides, there are also rigid angular or jointed parts in order to be able to change the plane and to take on different angular positions.

The stepped cylindrical protuberances have different diametric cuts in order to be able to place other parts or pieces of cardboard vertically and in different directions, these plates having the perimetric furrow co rresponding to their edges.

.S DECITO F H NETO In broad outline, the set of building parts for didactic-educational toys, that comprises the object of the present invention, allows by itself the development of a didactic-educational toy, as well as the creation of constructions with their different parts, which in turn can be combined or form part of other elements previously developed by the same applicant and commented on in the "~background of the invention" section.

As the basic main part we can cite that which is called the parallelepiped base part that has grooved and tongued interconnecting means for coplanar coupling with other similar base parts. These base parts are flat and have a thickness that suitably allows placement of the perimetric coplanar coupling groove by means of some flat extensions or tongue pieces. These tongue pieces may be independent or may be extensions of the parts themselvc's in some of their edges. The base parts are provided at least with a through recess on the larger surfaces thereof, wherein the respective stepped cylindrical button that defines another of the main types of parts of this set can 13/08 '97 WED 01: 26 [TX/RX NO 5174] ,08/08 '97 10:17 FAX 458 87 36 C.I.E. Q132 -I4 connect. The cylindrical button is stepped and can rotate in its housing upon being provided with some peripheral axial pins that move in a ring-shaped recess of the base part, that occupies a position concentric to the respective recess of the same.

The ring-shaped recesses of the base parts are placed on both surfaces of the same, just like the anchoring pins of the stepped cylindrical pin are. This permits insertion of the cylindrical button by the top part or by the bottom part of the base part.

Likewise, these buttons are stackable upon having a cylindrical inside recess in whose wall the end step of another stepped cylindrical button that has been introduced underneath penetrates- The buttons also include a diametric cut for insertion of the tongue pieces of the plates that materialize the base parts, or any other type of plate, and even pieces of cardboard in constructional plastic activities.- As the button rotates on the ring-shaped housing of the base plates, an exact rotation adjustment of the diametric cut is obtained. These stable positions are obtained upon providing for some small teeth that move with the axial pins of the button.

With regard to these axial pins of the cylindrical 2S buttons, we can say that they are advantageously four and each two consecutive ones -are located at a distance corresponding to the thickness of the base parts themselves, which makes it possible to place them vertically and in two positions rotated 900 In order to achieve a greater fastening it has been provided for that the axial pins, at least the bottom ones, have in their sides small bulges that fit in the furrows existing in the larger surfaces of the base parts, close to the edges that -mark the contour of said base parts.

These parts can therefore have a square shape with an 08/08 '97 FRI 18:14 [TX/RX NO 9993] 1.2/08 '97 17:29 FAX 458 87 36 C.I.E. 0 axial recess in the center and a concentric ring-shaped recess on each surface. Likewise, it has a perimetric groove and two flat extensions or tongue pieces located in two consecutive edges. To increase the fastening in the coplanar coupling, these tongue pieces can include some small bulges that insert by pressure.

The surface of the different parallelepi~ped base parts correspond to a multiple of this elementary surface of the square base part.

Irrespective of the fact that the cylindrical button is or is not assembled in these base parts, they represent digits, up to a maximum of ten, defined by the corresponding number of axial recesses included. In addition operations with different base parts, until a group of ten is formed, some sliders with a longitudinal hollow in one of the surfaces thereof, or in both, wherein the group of ten will be formed, are used. These sliders also advantageously have a perimetric groove and tongue pieces in their contour to thus allow use in constructions just like the base parts themselves.

In order to be able to identify the length of the base parts with the digit that they represent, each one of the different types can be included in the respective slot provided for in a rectangular plate that will also advantageeusly have the perimetric groove for insertion of pieces of cardboard or the tongue pieces of other integral parts of the toy. Inside each one of these slots (from one to ten) the number with its shape and the outline thereof are marked, encouraging the student w~ith the mnemonic drawings that would o'ptionallty be placed around the hollows of the shape.

Another building part is defined by the "hal1f" elements of the square base part, upon being divided into two complementary triangular parts. that may or may not include an axial recess, though it does have the ring- 13/08 '97 WED 01:26 [TX/RX NO 51741 12/08 '97 17:29 FAX 458 87 36

~O

C. I.E .1005 6 shaped recess for insertion of the cylindrical buttons, in one surface or the other- Each one of these triangular portions includes in one of the legs the corresponding coplanar coupling side tongue piece. Grooved and tongued coupling of both triangular halves is made possible, as both of them have complementary projections and recesses, the projections being advantageously located in a same half part and at a distance between each other that corresponds* to the diameter of the concentric ring-shaped recess of the base part, in order to allow coupling in a perpendicular position.

In order to achieve the change of planes and hinged angular rotation and with different stable positions that cover 180' by rotation of 900 in one direction and the other,, there are square base parts similar to the previous ones, but that have in one of their free edges of tongue pieces a pair of pins parallel to each other and perpendicular to the plane thereof, between which a complementary projection provided on the other similar base part is coupled, these parts thus acting as limbs of a hinge.

The edges of these limbs that end up close to each other, are advantageously beveled at 450- Another type of part that takes part in the building set in question, consists of some square covers, provided on the bottom with a (continiuos or discontinuous) ringshaped projection that can insert in the coaxial ringshaped recess of the base parts. These covers have on the top surface and corresponding to the ring-shaped proj action of the bottomn surface, a ring-shaped channel that can allow stacking of the covers. These covers can also be provided with a hollow coaxial cylindrical stub with a diameter corresponding to the axial recess of the base parts, for insertion thereof in a reverse position and to allow for more possibilities of assembly ofr parts in the 13/08 '97 WED 01:26 [TX/RX NO 5174] Ok/08 '97 10:17 FAX 458 87 36 C ~3 C. I.E LPJ 3 4 7 construction.

Another type of part, functionally similar to the covers, is defined by triangular parts obtained by a diagonal cut of the square covers. These covers totally occupy the surface of a square base part.

With the square as well as elongated base parts, as well as with the triangular base parts, one can form a rectangular panel as a playing board, or else one that follows the contour of a desired drawing. One can obtain a inotif by using the precise square or triangular covers, it not being necessary to use the cylindrical buttons.

If one wishes to change the plane or the formation of three-dimensional structures, mosaic drawings can be made by also using the parts described finally, the hinge parts.

Thus the structures that arise f romn them can be collapsible.

It has also been provided for that another one of rhe parts of this building set, is defined by some separators that allow coplanar coupling, though distant, of the base parts, without these base parts having to remain grooved and tongued interconnected upon the extensions of one of them being housed in the perimetric groove of the other one. The cross section of these separating parts is "hshaped" and the horizontal walls have their free edge curvi-concave in order to adapt to the contour of the stepped cylindrical buttons. This makes it possible to do without the linear sliders for the formation of groups of tens that thus remain slightly separated by means of these separating parts.- As we have indicated above, thanks to the rotating arrangement that the cylindrical button adopts in the axial housing of the different base parts, the diametric groove of its top end is positioned in the desired angular position- The same thing could also be obtained, though 08/08 '97 FRI 18:14 [TX/RX NO 99931 -?/iuo 01 XU.JXI FAA %00 *1 40

L

I Z.

not so freely, if the base parts included an axial recess star-shaped in one of its surfaces and the other one having an extension or orthogonal fin in diametric position. In stacked coupling, the tongue piece could be inserted in the selected star-shaped or radiating groove.

To provide a better understanding of the features of the invention and forming an integral part of this specification, some sheets of drawings in whose figures, in an illustrative and non-restrictive manner, the following has been represented, are attached hereto: BRIEF DESC:RIPTION OF THE DRhWINGS Figure 1 is a perspective view of a square base part including a cylindrical button with its bottom surface inserted, also showing in an exploded manner a second cylindrical button placed on top.

Figure 2 is a cross section of a square base part with a cylindrical button with its bottom surface inserted.

Figure 3 is a plan view of a square base part that has three cy lindrical buttons assembled in different positions, one of these cylindrical buttons having connected perpendicularly another square base part.

Figure 4 is a perspective view of a pair of parts of the building set, generally triangular, and that complement a square base part, both having interconnecting means to achieve grooved and tongued coupling thereof.

Figure 5 is a perspective view of another part comprising the building set, defined as a hinge element, the latter being formed by the articulation of two limbs similar to respective square base parts.

Figure 6 is a perspective view of a rectangular playing board that has a mosaic motif, achieved by using some covers insertable in the axial recess or ring-shaped recess of the base parts, these covers being of two types: square and triangular.

Figure 7 is a perspective view of one of the square 08/08 '97 FRI 18:14 [TX/RX NO 9993] 0&/108 '97 10:17 FAX 458 87 36 C.I.E. 13 insertion covers for the fo-rMation of a mosaic drawing, one being able to See from the top the obverse side of the part, and from the bottom its reverse side.

Figure 8 is a perspective view of. the triangular covers, obtained by the diagonal cut of the square covers of figure 7.

Figure 9 is a perspective view of a part similar to the square cover, with a coaxial cylindrical extension longer than the covers and a smaller contour surface, usable as an element to remove the covers themselves, at the top part of the playing board.

Figure 10 is a perspective view of a didacticeducational toy that includes a set of building parts, forming a doll.

Figure 11 is a perspective schematic perspective view of a part of the buil ding set, that defines a template with ciphers to house in. their respective hollows, different base parts depending on the number of insertion holes of the cylindrical buttons whose number the corresponding cipher determines.

Figure.12 is a perspective view of another one of the parts included in the building set, defined by a slider with a base part location recess to sum up the formation of a group of ten, in didactic-education operations, likewise being usable for building, upon being provided with grooved and tongued coupling means.

Figure 13 is a perspective view of a playing board with base parts grouped together in groups of ten, each one of them separated parallel to the contiguous ones by means of separating parts included in the proposed building set, thus being used for the formation of numbers and operations carried out with them.

Figure 14 is a plan view to observe the connection of two base parts, by means of a separating part included in the building set, corresponding with the perspective 08/08 '97 FRI 18:14 [TX/RX NO 9993] u~/ub '97 10:17 FAX 458 87 38 C.I.E. LdJ37 detailed view of this same figure- DESCRIPTION OF THE PREFERRED E11ODXEiNT] Making reference to the numbering used in the figures, we can see how the set of building parts for didacticeducation toys, that- the invention proposes, includes a type of part defined by the parallelepiped square base parts and in the case of f igure 1 with a quadrangular contour, this being the basic surface of the base parts The rest of the parts have a multiple surf ace of the previous one, up to the longest length that includes ten basic units.

The base parts include a perirnetric groove for grooved and tongued coupling into one another, as there are tongue pieces on, two contiguous edges.

The quadrangular base part includes an axial recess for insertion of the cylindrical button As we have indicated above, on both surfaces there are respective ring-shaped recesses in which the peripheral axial pins of the cylindrical button emerging from the circular crown through both surfaces of the same to allow for insertion of the cylindrical button in the top part or in the bottom part of the base plate move.

Reference designates the diametric groove of the top part of the cylindrical button that opens up on the sides, having therein a smaller width, as one can clearly see in figure 1.

In figure 2 we can see the coupling of the cylindrical button at the bottom part of the base part housing the four top pins of the former, in the ring-shaped recess of the bottom surface of the base part if the insertion had been done at the top part, it would be the bottom pins of the cylindrical button that would be inserted in the ring-shaped recess of the top surface of the base part In this way the stacking off different base parts is achieved.

08/08 '97 FRI 18:14 [TX/RX NO 9993] 08/08 '97 10:17 FAX 458 87 36C.Ii. j3 C. I. E. 1038 Now making special reference to figure 3, we can see how due to the fact that the thickness of the base parts corresponds to the distance between the axial pins (7) of the bottom surface of the cylindrical buttons the base part can be placed perpendicular to the cylindrical button, remaaining retained between said axial pins stabilizing the centered coupling position, upon providing for some small bulges (10) on the contact surface of the pins insertable in the respective furrows (119 of the larger surfaces of the base parts placed close to the edges of the perimeter thereof.

In order to stabilize the relative position of rotation between the cylindrical button and the base part the walls of the ring-shaped recess of the 'latter include some small teeth (12) that collaborate with the axial pins of the cylindrical button In figure 4 the triangular parts called "half" elements of the square base parts are referred to as numbers (13) and Their contour is that of a rightangled triangle in one of whose legs there is the corresponding tongue piece of coplanar coupling between different base parts. The edge corresponding to the hypotenuse has the axial half recess of the base part made therein. Therefore, these triangular parts (13) and (14) include the perirnetric groove and the corresponding part of the ring-shaped recess Both Parts carn be interconnected in a grooved and tongued manner since part (13) includes the pair of projections (15) and since the second one is provided with recesses (16) .The separation of the projections (15) corresponds with the diameter of the ring-shaped recess in order to allow coupling of this half part with a base part placed orthogonally.

In f~igure 5 another one* of the parts comprising the building set is ref erred to as number (17) it 08/08 '97 FRI 18:14 [TX/RX NO 9993] ub,08 '97 10:17 FAX 458 87 36 C E ~3 C. I. E. 14M 39 12 material.izes a hinged body since it has its Ilimbs or half parts of the hinge articulated. Each one of them is defined by respectivje parts similar to the base parts (1) since they have the perirnetric groove, tongue pieces, axial recess and ring-shaped recess to allow the different couplings of different parts.

In the enlarged detailed view of this figure 5 we can see how the different angular positions of the hinge corresponding to the coplanar position of the limbs at 450 and at 90', i.n one direction and the other, are kept stable. we can see that-the edges of the limbs are beveled at 45' to facilitate the angular position of 900.

Nqow making special reference to f igures 6 to 9, we can see how mosaic drawings are obtained by using specific parts of the building set, materialized by the base parts to form the rectangular playing board in this case, and by the insertable covers (19) and other similar triangular ones obtained by the diagonal cut of the base parts. These triangular covers are referred to as number The covers (19) are stackable upon having a ring-shaped projection on the bottom surface and a ring-shaped channel on the top surface, in opposite positions. These covers (19) are advantageously provided with a hollow coaxial cylindrical stub for insertion thereof in the reverse position in the axial recess of the base parts whose height may be the most conveni-ent one. In figure 9, a tool for removing covers (19) and (20) is referred to as number The coaxial cylindrical stub thereof is notably longer to allow gripping. The quadrangular contour of this removing tool (21) is of a smaller dimension than the one corresponding to the covers (19) so as to not interfere with the contiguous ones when a mosaic decorated motif is being formed, such as the butterfly that is shown in figure 6.

In figure 10, we can see different base parts (1) 08/08 '97 FRI 18:14 [TX/RX NO 9993] -9 f U0 V1 LU.JLI rAA 400 of 00 t, I r, LYJ 4U 13 (with a square contour in this embodiment), used together with the hinged parts (17) and the triangular parts (13) and (14) for the formation of a doll.

In figure 11 as reference number (22) we see a rectangular template that includes parallel slots or recesses (23) adapted to the dimensions of the base parts having a different length to correspond with the correlative numbering that marks the cipher located in this embodiment, on the bottom part of the recesses or slots themselves. These templates (22) have a perimetric groove to allow their coplanar coupling with other integral parts of the cons truction. By means of this perimetric groove, or else by nieans of fastening pincers pieces of cardboard may be put in place in order to form an object, doll, animal, or place, thus obtaining a producer of situations to stimulate the student to operate mathematically.

Another one of the integral parts of the building set is generally referred to as number (25) in figure 12 and it represents a slider with a rectangular slot or recess (23) in which base parts can be located in order to complete the "group of ten" formed in this case by two base parts each one with five axial recesses, representative of the number five and that may or may niot include the cylindrical buttons This slider (25) includes the perimetric groove and the side tongue pieces for coplanar coupling between different sliders and/or templates as well as to also allow connect-on in a coplanar manner to the base parts themnselves The width of the slider corresponds with the double of the dimension corresponding to the side of the base parts and the length corresponds to thirteen times the length of the side off said square base part.

In figures 13 and 14 we can see as reference number (26) the separating p~ts with an "I-"-cross section and 08/08 '97 FRI 18: 14 [TX/RX NO 99931 08/08 '97 10:17 FAX 458 87 36 C.

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Q 141 14 distinguish by groups of ten the base parts that are being formed upon operating .in the formation of groups of one hundred. Thus, in the example of figure 13 the number 76, that can constitute an addend of another numrber formed until summing up the group off one hundred materialized by ten parallel alignments 9 eparated by the separating parts has already been formed-.

is 08/08 '97 FRI 18:14 [TX/RX NO 99931

Claims

08./08 '97 10:17 FAX 458 87 36 C. I. E. U42 CLAM4S 1 Set of building parts for didactic-edUcation 1 toys, that includes a Parallelepiped base part with groov 'Id and tongued inlterconnecting means for -coplanar couplinlg t ic other base parts, upon having a perimnetric groove in th~ edges thereof fozr insertion of flat parts or tongue pieces, independent or fixed as extensions in some of the edges- characterized in that it includes a cylindrical part th4 is materialized by a stepped cylindrical butto n connectable to the parallelepiped base part, provide8 with at least one axial receivring recess, the button being able to rotate in its housing upon being provideV with peripheral axial pins that are housed in a ring shaped recess of. the ba~se part concentric to thl respective recess of the same; the end of the pln! bulging and the ring-shaped recess receiving the base part having a "C"-shaped section for insertion.I 2. Set of building parts for didactic-educationai toys, according to claim 1, wherein the ring-shape reess of the base part as well as the axia pins of the cylindrical button exist on bot surfaces to al-low insertion of the cylindrical button at the top part or the bottom part of the base part. 3. Set of building parts for didactic-educational toys, according to claims I. or 2, wherein the top part of the cylindrical button is provided wiith a diametricl gzoove that opens up to the periphery. 4. Set of building parts for didactic-educational toys, according to claims 1 to 3, wherein the axial nins of the cylindrical button/ at least the bottom ones, have i.n their sides some small bulges for insertion in respective furrows existing in the larger surfaces of the base parta upon placing the latter on edge and in a diametric position with regard to the 08/08 '97 FRI 18: 14 [TX/RX NO 99931 08.9'08 '97 10:17 FAX 458 87 36 C.I.E. cylindrical button, upon remaining fixed between tl pins and in two vertical positions rotated 90', as thie separation between the pins corresponds with the thickness of the base part# Set of building parts for didacticeducationall toys, according to any of the above claims, whereinr the ring-shaped recesseg of the base parts fo~r insertion of the pins of the cylindrical button areI provided w~ith some small teeth that move with the pi is of the button to mark different stable position~ for the diametric groove of the cylindrical button. 6. Set of building parts for diatc-dct toys, according to any of the above claims, wherein the top and bottom pins of the buttons permit stacking o the base parts, also achieving this stacking of bas. parts by bushings insertable through their ends in the respective ring-shaped recesses of said base parts. 7. Set of building parts for didactic-educational toys, according to c-laim 6, wherein the bushings have the ij edges castellated forming legrs similar to those of th~ cylindrical buttons in an equal number and shape. 8. Set of building parts for didactic-educational toys, according to any of the above claims, wherein th base parts have a square contour and have a singi axial recess, having two side, fixed or independent, tongue pieces, in two consecutive edges.
9. Set of building parts for didactic-educational toys, according to claimn 8, characterized in that the square base part is divided into two complementary triangular parts, which may or may not include an axial recess, having both coplanar coupling side tonguel pieces, each one of them having in their edges corresponding to the hypotenuses, on each side of the axial .recess, some complementary projections and recesses to allow grooved and tongued coupling 0~43 08/08 '97 FRI 18:14 [TX/RX NO 9993] u o ju;j fAA 4b 57 31 I.lU I 1 l(j44 17 thereof. Set of building parts for didactic-educational 1 toys, according to claim 9, wherein the projections are in a same half part and at a mutual distance that corresponds with the diameter of the concentric ring-shaped recess of the base part to allow coupling of this half part with a base part placed orthogonally.
11. Set of building parts for didactic-educational toys, according to claim 8, characterized in that it includes an articulated part defined by two square base parts, one of which has in one of its edges free of tongue pieces, both pins parallel to each other and perpendicular to the plane thereof for coupling with complementary projection provided for in the other simila. square -base part, making it possible to form together hinged body with different stable angular positions and covering 1800; the longitudinal edges close to both limbL of the hinge being beveled in order to allow rotation oj in one direction or the other.
12. Set of building parts for didactic-educational toys, according to any of the above claims, characterized in that it includes some covers provided on the bottom with a projection insertable in the axial recess or coaxial ring-shaped recess. of the square, elongated rectangular base parts, of the complementary triangular parts or of the limbs of the hinged bodies.
13. Set of building parts for didactic-educational toys, according to claim 12, wherein the covers have in the bottom a ring-shaped projection and they have a ring-shaped channel on the top surface, in correspondence With the ring-shaped projection of the bottom surface, thus being stackable and being able to be provided with a hollow coaxial cylindrical stub for insertion thereof in a reverse position in the axial recess of the base parts.
14. Set of building parts for didactic-educational 08/08 '97 FRI 18:14 [TX/RX NO 9993] V! ku;lf rAA 405 Of JU 1045 toys, according to claim 13, wherein the b ottom ring'-shap Id projectionl of the cover is discontinuous and has fo r sections whose separation allows Orthogonal arrangenft 'n two positionls, of another cover or f olded Piece i or the like. ddcieuCtol\ Set of building parts for iatceuton toys, according~ to any of the claims 12 t-o 14, wherein the cov.ers are divided into two parts as they are cu by a diagonal plane.
16. Set cf building parts for didactic-education4 toys, according to claim 1, characterized in that i4 includes some rectangular temuplates, poided with perimetric groove and -on whose surfaze there ar parallel-recesses for insertion of square base partE; Is and other elongated ones that define the multiples of the basic square surface, upto the one correspondinlg the number ten, having the correspondinlg cipher marked ana shaed Set of building parts for didactic-education 4 toys, according to claim 1, characterized in that i, includes some rectangular sliders with a periinetri6 groove and coplanar coupling tongue pieces, on whos surface there is a longitudinal recess fror insertioA of the base part having ten axial recesses. or th combination of other smaller base parts,~
18. Set of buildinlg parts for iatceuton toys, characterized in that it includes: base parts provided with at least- one axia recess and concentric ring-shaped recesses, with perimetric. groove and coplanar coupling tongue pieces, triangular base parts obtained by cutting,' of the square base parts, according to a diagonal planie, and that have grooved and tongued coupling means. betweenl them, 08/08 '97 FRI 18:14 [TX/RX NO 9993] 08/0.8 '97 10:17 FAX 458 87 36 C.I.E. squae coers19 Squre cversprovided with 8 continuous discontinuous ring-shaped projection on their bottom surface for insertion in the ring-shaped recess of the bal parts also having a ring-shaped channel in the top surface for stacked coupling and a coaxial cylindrical st.~b for insertion in a reverse position, in the axial recess of the base parts, triangular covers obtained upon cutting byr diagonal plane the squaze cover s allowing the formation of a rectangular panel as a playing board o IL allowing said panel. to constitute the contour of a mosai 'c drawing with the help of triangular base part S/ P la ing the square or triangular covers needed to formh other mosaic drawings on said panel.
19. Set of building parts for didactic- educa tioia~ toys, according to claim 18, characterized in that it als incl ides the hinged-type articulated parts, whose lim~bs are similar .to the square base parts, allow14 the formation of three-dimensional and collaosiblh constructions. 1 A set of building parts substantially as herein des4 ibed with reference to the accompanying drawings. 12146 08/08 '97 FRI 18:14 [TX/RX NO 9993]